Irregulars like Tempest are nothing to fear for a career military man like Aguro. The commander made his living on the field of battle long before Daos and company were unsealed by Erim's rebirth. He swings a strong axe and specializes in physical fights like few others. He has every advantage you would expect for a seasoned officer over a grunt like this - durability, damage, training, experience, finesse. His heavy equips and muscular frame makes him a little slow, sure, but that doesn't matter with his notably superior combat background, especially against a pipsqueak. No scrawny militiaman will get the best of Aguro of Lorbenian!